~adam-stokes/ubuntu/precise/eglibc/avx-support-979003 : revision 289

1

2012-05-17 Andreas Jaeger <aj@suse.de>

2

Carlos O'Donell <carlos_odonell@mentor.com>

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4

[BZ #14059]

5

* sysdeps/x86_64/multiarch/init-arch.h

6

(bit_YMM_Usable): Rename to...

7

(bit_AVX_Usable): ... this.

8

(bit_FMA4_Usable): New macro.

9

(bit_XMM_state): New macro.

10

(bit_YMM_state): New macro.

11

[__ASSEMBLER__] (index_YMM_Usable): Rename to...

12

[__ASSEMBLER__] (index_AVX_Usable): ... this.

13

[__ASSEMBLER__] (index_FMA4_Usable): New macro.

14

(CPUID_OSXSAVE): New macro.

15

(CPUID_AVX): New macro.

16

(CPUID_FMA4): New macro.

17

(index_YMM_Usable): Rename to...

18

(index_AVX_Usable): ... this.

19

(HAS_AVX): Use HAS_ARCH_FEATURE.

20

(HAS_FMA4): Likewise.

21

(HAS_YMM_USABLE): Remove.

22

* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features):

23

Enable AVX or FMA4 IFF YMM and XMM states are usable and the features

24

are present.

25

* sysdeps/x86_64/multiarch/strcmp.S: Use bit_AVX_Usable.

26

* sysdeps/i386/i686/multiarch/Makefile: Add test-multiarch to tests.

27

* sysdeps/x86_64/multiarch/Makefile: Likewise.

28

* sysdeps/i386/i686/multiarch/test-multiarch.c: New file.

29

* sysdeps/x86_64/multiarch/test-multiarch.c: New file.

30

31

2012-01-26 Ulrich Drepper <drepper@gmail.com>

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33

[BZ #13583]

34

* sysdeps/x86_64/multiarch/init-arch.h: Define bit_OSXSAVE.

35

Clean up HAS_* macros.

36

* sysdeps/x86_64/multiarch/init-arch.c (__init_cpu_features): If

37

bit_AVX is set also check OSXAVE/XCR0 and set bit_YMM_Usable if

38

possible.

39

* sysdeps/x86_64/fpu/multiarch/e_atan2.c: Use HAS_YMM_USABLE, not

40

HAS_AVX.

41

* sysdeps/x86_64/fpu/multiarch/e_exp.c: Likewise.

42

* sysdeps/x86_64/fpu/multiarch/e_log.c: Likewise.

43

* sysdeps/x86_64/fpu/multiarch/s_atan.c: Likewise.

44

* sysdeps/x86_64/fpu/multiarch/s_sin.c: Likewise.

45

* sysdeps/x86_64/fpu/multiarch/s_tan.c: Likewise.

46

47

diff --git a/sysdeps/i386/i686/multiarch/Makefile b/sysdeps/i386/i686/multiarch/Makefile

48

index b764e5b..8946bfa 100644

49

--- a/sysdeps/i386/i686/multiarch/Makefile

50

+++ b/sysdeps/i386/i686/multiarch/Makefile

51

@@ -1,5 +1,6 @@

52

ifeq ($(subdir),csu)

53

aux += init-arch

54

+tests += test-multiarch

55

gen-as-const-headers += ifunc-defines.sym

56

endif

57

58

diff --git a/sysdeps/i386/i686/multiarch/test-multiarch.c b/sysdeps/i386/i686/multiarch/test-multiarch.c

59

new file mode 100644

60

index 0000000..593cfec

61

--- /dev/null

62

+++ b/sysdeps/i386/i686/multiarch/test-multiarch.c

63

@@ -0,0 +1 @@

64

+#include <sysdeps/x86_64/multiarch/test-multiarch.c>

65

diff --git a/sysdeps/x86_64/fpu/multiarch/e_atan2.c b/sysdeps/x86_64/fpu/multiarch/e_atan2.c

66

index 6867c6e..3a615fc 100644

67

--- a/sysdeps/x86_64/fpu/multiarch/e_atan2.c

68

+++ b/sysdeps/x86_64/fpu/multiarch/e_atan2.c

69

@@ -14,7 +14,7 @@ extern double __ieee754_atan2_fma4 (double, double);

70

71

libm_ifunc (__ieee754_atan2,

72

HAS_FMA4 ? __ieee754_atan2_fma4

73

- : (HAS_AVX ? __ieee754_atan2_avx : __ieee754_atan2_sse2));

74

+ : (HAS_YMM_USABLE ? __ieee754_atan2_avx : __ieee754_atan2_sse2));

75

strong_alias (__ieee754_atan2, __atan2_finite)

76

77

# define __ieee754_atan2 __ieee754_atan2_sse2

78

diff --git a/sysdeps/x86_64/fpu/multiarch/e_exp.c b/sysdeps/x86_64/fpu/multiarch/e_exp.c

79

index 3c65028..7b2320a 100644

80

--- a/sysdeps/x86_64/fpu/multiarch/e_exp.c

81

+++ b/sysdeps/x86_64/fpu/multiarch/e_exp.c

82

@@ -14,7 +14,7 @@ extern double __ieee754_exp_fma4 (double);

83

84

libm_ifunc (__ieee754_exp,

85

HAS_FMA4 ? __ieee754_exp_fma4

86

- : (HAS_AVX ? __ieee754_exp_avx : __ieee754_exp_sse2));

87

+ : (HAS_YMM_USABLE ? __ieee754_exp_avx : __ieee754_exp_sse2));

88

strong_alias (__ieee754_exp, __exp_finite)

89

90

# define __ieee754_exp __ieee754_exp_sse2

91

diff --git a/sysdeps/x86_64/fpu/multiarch/e_log.c b/sysdeps/x86_64/fpu/multiarch/e_log.c

92

index 3b468d0..ab277d6 100644

93

--- a/sysdeps/x86_64/fpu/multiarch/e_log.c

94

+++ b/sysdeps/x86_64/fpu/multiarch/e_log.c

95

@@ -14,7 +14,7 @@ extern double __ieee754_log_fma4 (double);

96

97

libm_ifunc (__ieee754_log,

98

HAS_FMA4 ? __ieee754_log_fma4

99

- : (HAS_AVX ? __ieee754_log_avx

100

+ : (HAS_YMM_USABLE ? __ieee754_log_avx

101

: __ieee754_log_sse2));

102

strong_alias (__ieee754_log, __log_finite)

103

104

diff --git a/sysdeps/x86_64/fpu/multiarch/s_atan.c b/sysdeps/x86_64/fpu/multiarch/s_atan.c

105

index 3160201..78c7e09 100644

106

--- a/sysdeps/x86_64/fpu/multiarch/s_atan.c

107

+++ b/sysdeps/x86_64/fpu/multiarch/s_atan.c

108

@@ -12,7 +12,8 @@ extern double __atan_fma4 (double);

109

# define __atan_fma4 ((void *) 0)

110

# endif

111

112

-libm_ifunc (atan, HAS_FMA4 ? __atan_fma4 : HAS_AVX ? __atan_avx : __atan_sse2);

113

+libm_ifunc (atan, (HAS_FMA4 ? __atan_fma4 :

114

+ HAS_YMM_USABLE ? __atan_avx : __atan_sse2));

115

116

# define atan __atan_sse2

117

#endif

118

diff --git a/sysdeps/x86_64/fpu/multiarch/s_sin.c b/sysdeps/x86_64/fpu/multiarch/s_sin.c

119

index 1ba9dbc..417acd0 100644

120

--- a/sysdeps/x86_64/fpu/multiarch/s_sin.c

121

+++ b/sysdeps/x86_64/fpu/multiarch/s_sin.c

122

@@ -17,10 +17,12 @@ extern double __sin_fma4 (double);

123

# define __sin_fma4 ((void *) 0)

124

# endif

125

126

-libm_ifunc (__cos, HAS_FMA4 ? __cos_fma4 : HAS_AVX ? __cos_avx : __cos_sse2);

127

+libm_ifunc (__cos, (HAS_FMA4 ? __cos_fma4 :

128

+ HAS_YMM_USABLE ? __cos_avx : __cos_sse2));

129

weak_alias (__cos, cos)

130

131

-libm_ifunc (__sin, HAS_FMA4 ? __sin_fma4 : HAS_AVX ? __sin_avx : __sin_sse2);

132

+libm_ifunc (__sin, (HAS_FMA4 ? __sin_fma4 :

133

+ HAS_YMM_USABLE ? __sin_avx : __sin_sse2));

134

weak_alias (__sin, sin)

135

136

# define __cos __cos_sse2

137

diff --git a/sysdeps/x86_64/fpu/multiarch/s_tan.c b/sysdeps/x86_64/fpu/multiarch/s_tan.c

138

index 8f6601e..3047155 100644

139

--- a/sysdeps/x86_64/fpu/multiarch/s_tan.c

140

+++ b/sysdeps/x86_64/fpu/multiarch/s_tan.c

141

@@ -12,7 +12,8 @@ extern double __tan_fma4 (double);

142

# define __tan_fma4 ((void *) 0)

143

# endif

144

145

-libm_ifunc (tan, HAS_FMA4 ? __tan_fma4 : HAS_AVX ? __tan_avx : __tan_sse2);

146

+libm_ifunc (tan, (HAS_FMA4 ? __tan_fma4 :

147

+ HAS_YMM_USABLE ? __tan_avx : __tan_sse2));

148

149

# define tan __tan_sse2

150

#endif

151

diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile

152

index 9a183f0..dd6c27d 100644

153

--- a/sysdeps/x86_64/multiarch/Makefile

154

+++ b/sysdeps/x86_64/multiarch/Makefile

155

@@ -1,5 +1,6 @@

156

ifeq ($(subdir),csu)

157

aux += init-arch

158

+tests += test-multiarch

159

gen-as-const-headers += ifunc-defines.sym

160

endif

161

162

diff --git a/sysdeps/x86_64/multiarch/init-arch.c b/sysdeps/x86_64/multiarch/init-arch.c

163

index 65b0ee9..df0fe55c 100644

164

--- a/sysdeps/x86_64/multiarch/init-arch.c

165

+++ b/sysdeps/x86_64/multiarch/init-arch.c

166

@@ -1,6 +1,6 @@

167

/* Initialize CPU feature data.

168

This file is part of the GNU C Library.

169

170

171

Contributed by Ulrich Drepper <drepper@redhat.com>.

172

173

The GNU C Library is free software; you can redistribute it and/or

174

@@ -144,6 +144,25 @@ __init_cpu_features (void)

175

else

176

kind = arch_kind_other;

177

178

+ /* Can we call xgetbv? */

179

+ if (CPUID_OSXSAVE)

180

+ {

181

+ unsigned int xcrlow;

182

+ unsigned int xcrhigh;

183

+ asm ("xgetbv" : "=a" (xcrlow), "=d" (xcrhigh) : "c" (0));

184

+ /* Is YMM and XMM state usable? */

185

+ if ((xcrlow & (bit_YMM_state | bit_XMM_state)) ==

186

+ (bit_YMM_state | bit_XMM_state))

187

+ {

188

+ /* Determine if AVX is usable. */

189

+ if (CPUID_AVX)

190

+ __cpu_features.feature[index_AVX_Usable] |= bit_AVX_Usable;

191

+ /* Determine if FMA4 is usable. */

192

+ if (CPUID_FMA4)

193

+ __cpu_features.feature[index_FMA4_Usable] |= bit_FMA4_Usable;

194

+ }

195

+ }

196

+

197

__cpu_features.family = family;

198

__cpu_features.model = model;

199

atomic_write_barrier ();

200

diff --git a/sysdeps/x86_64/multiarch/init-arch.h b/sysdeps/x86_64/multiarch/init-arch.h

201

index 2a1df39..37566c8 100644

202

--- a/sysdeps/x86_64/multiarch/init-arch.h

203

+++ b/sysdeps/x86_64/multiarch/init-arch.h

204

@@ -1,5 +1,5 @@

205

/* This file is part of the GNU C Library.

206

207

208

209

The GNU C Library is free software; you can redistribute it and/or

210

modify it under the terms of the GNU Lesser General Public

211

@@ -22,16 +22,24 @@

212

#define bit_Prefer_SSE_for_memop (1 << 3)

213

#define bit_Fast_Unaligned_Load (1 << 4)

214

#define bit_Prefer_PMINUB_for_stringop (1 << 5)

215

+#define bit_AVX_Usable (1 << 6)

216

+#define bit_FMA4_Usable (1 << 7)

217

218

+/* CPUID Feature flags. */

219

#define bit_SSE2 (1 << 26)

220

#define bit_SSSE3 (1 << 9)

221

#define bit_SSE4_1 (1 << 19)

222

#define bit_SSE4_2 (1 << 20)

223

+#define bit_OSXSAVE (1 << 27)

224

#define bit_AVX (1 << 28)

225

#define bit_POPCOUNT (1 << 23)

226

#define bit_FMA (1 << 12)

227

#define bit_FMA4 (1 << 16)

228

229

+/* XCR0 Feature flags. */

230

+#define bit_XMM_state (1 << 1)

231

+#define bit_YMM_state (2 << 1)

232

+

233

#ifdef __ASSEMBLER__

234

235

# include <ifunc-defines.h>

236

@@ -48,6 +56,8 @@

237

# define index_Prefer_SSE_for_memop FEATURE_INDEX_1*FEATURE_SIZE

238

# define index_Fast_Unaligned_Load FEATURE_INDEX_1*FEATURE_SIZE

239

# define index_Prefer_PMINUB_for_stringop FEATURE_INDEX_1*FEATURE_SIZE

240

+# define index_AVX_Usable FEATURE_INDEX_1*FEATURE_SIZE

241

+# define index_FMA4_Usable FEATURE_INDEX_1*FEATURE_SIZE

242

243

#else /* __ASSEMBLER__ */

244

245

@@ -92,7 +102,7 @@ extern struct cpu_features

246

247

248

extern void __init_cpu_features (void) attribute_hidden;

249

-#define INIT_ARCH()\

250

+# define INIT_ARCH() \

251

do \

252

if (__cpu_features.kind == arch_kind_unknown) \

253

__init_cpu_features (); \

254

@@ -111,37 +121,45 @@ extern const struct cpu_features *__get_cpu_features (void)

255

256

/* Following are the feature tests used throughout libc. */

257

258

+/* CPUID_* evaluates to true if the feature flag is enabled.

259

+ We always use &__cpu_features because the HAS_CPUID_* macros

260

+ are called only within __init_cpu_features, where we can't

261

+ call __get_cpu_features without infinite recursion. */

262

+# define HAS_CPUID_FLAG(idx, reg, bit) \

263

+ (((&__cpu_features)->cpuid[idx].reg & (bit)) != 0)

264

+

265

+# define CPUID_OSXSAVE \

266

+ HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_OSXSAVE)

267

+# define CPUID_AVX \

268

+ HAS_CPUID_FLAG (COMMON_CPUID_INDEX_1, ecx, bit_AVX)

269

+# define CPUID_FMA4 \

270

+ HAS_CPUID_FLAG (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4)

271

+

272

+/* HAS_* evaluates to true if we may use the feature at runtime. */

273

# define HAS_SSE2 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, edx, bit_SSE2)

274

# define HAS_POPCOUNT HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_POPCOUNT)

275

# define HAS_SSSE3 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSSE3)

276

# define HAS_SSE4_1 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_1)

277

# define HAS_SSE4_2 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_SSE4_2)

278

# define HAS_FMA HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_FMA)

279

-# define HAS_AVX HAS_CPU_FEATURE (COMMON_CPUID_INDEX_1, ecx, bit_AVX)

280

-# define HAS_FMA4 HAS_CPU_FEATURE (COMMON_CPUID_INDEX_80000001, ecx, bit_FMA4)

281

282

# define index_Fast_Rep_String FEATURE_INDEX_1

283

# define index_Fast_Copy_Backward FEATURE_INDEX_1

284

# define index_Slow_BSF FEATURE_INDEX_1

285

# define index_Prefer_SSE_for_memop FEATURE_INDEX_1

286

# define index_Fast_Unaligned_Load FEATURE_INDEX_1

287

-

288

-#define HAS_ARCH_FEATURE(idx, bit) \

289

- ((__get_cpu_features ()->feature[idx] & (bit)) != 0)

290

-

291

-#define HAS_FAST_REP_STRING \

292

- HAS_ARCH_FEATURE (index_Fast_Rep_String, bit_Fast_Rep_String)

293

-

294

-#define HAS_FAST_COPY_BACKWARD \

295

- HAS_ARCH_FEATURE (index_Fast_Copy_Backward, bit_Fast_Copy_Backward)

296

-

297

-#define HAS_SLOW_BSF \

298

- HAS_ARCH_FEATURE (index_Slow_BSF, bit_Slow_BSF)

299

-

300

-#define HAS_PREFER_SSE_FOR_MEMOP \

301

- HAS_ARCH_FEATURE (index_Prefer_SSE_for_memop, bit_Prefer_SSE_for_memop)

302

-

303

-#define HAS_FAST_UNALIGNED_LOAD \

304

- HAS_ARCH_FEATURE (index_Fast_Unaligned_Load, bit_Fast_Unaligned_Load)

305

+# define index_AVX_Usable FEATURE_INDEX_1

306

+# define index_FMA4_Usable FEATURE_INDEX_1

307

+

308

+# define HAS_ARCH_FEATURE(name) \

309

+ ((__get_cpu_features ()->feature[index_##name] & (bit_##name)) != 0)

310

+

311

+# define HAS_FAST_REP_STRING HAS_ARCH_FEATURE (Fast_Rep_String)

312

+# define HAS_FAST_COPY_BACKWARD HAS_ARCH_FEATURE (Fast_Copy_Backward)

313

+# define HAS_SLOW_BSF HAS_ARCH_FEATURE (Slow_BSF)

314

+# define HAS_PREFER_SSE_FOR_MEMOP HAS_ARCH_FEATURE (Prefer_SSE_for_memop)

315

+# define HAS_FAST_UNALIGNED_LOAD HAS_ARCH_FEATURE (Fast_Unaligned_Load)

316

+# define HAS_AVX HAS_ARCH_FEATURE (AVX_Usable)

317

+# define HAS_FMA4 HAS_ARCH_FEATURE (FMA4_Usable)

318

319

#endif /* __ASSEMBLER__ */

320

diff --git a/sysdeps/x86_64/multiarch/strcmp.S b/sysdeps/x86_64/multiarch/strcmp.S

321

index f93c83d..d036160 100644

322

--- a/sysdeps/x86_64/multiarch/strcmp.S

323

+++ b/sysdeps/x86_64/multiarch/strcmp.S

324

@@ -1,5 +1,5 @@

325

/* strcmp with SSE4.2

326

327

328

Contributed by Intel Corporation.

329

This file is part of the GNU C Library.

330

331

@@ -84,6 +84,7 @@

332

.text

333

ENTRY(STRCMP)

334

.type STRCMP, @gnu_indirect_function

335

+ /* Manually inlined call to __get_cpu_features. */

336

cmpl $0, __cpu_features+KIND_OFFSET(%rip)

337

jne 1f

338

call __init_cpu_features

339

@@ -101,13 +102,14 @@ END(STRCMP)

340

# ifdef USE_AS_STRCASECMP_L

341

ENTRY(__strcasecmp)

342

.type __strcasecmp, @gnu_indirect_function

343

+ /* Manually inlined call to __get_cpu_features. */

344

cmpl $0, __cpu_features+KIND_OFFSET(%rip)

345

jne 1f

346

call __init_cpu_features

347

1:

348

# ifdef HAVE_AVX_SUPPORT

349

leaq __strcasecmp_avx(%rip), %rax

350

- testl $bit_AVX, __cpu_features+CPUID_OFFSET+index_AVX(%rip)

351

+ testl $bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip)

352

jnz 2f

353

# endif

354

leaq __strcasecmp_sse42(%rip), %rax

355

@@ -124,13 +126,14 @@ weak_alias (__strcasecmp, strcasecmp)

356

# ifdef USE_AS_STRNCASECMP_L

357

ENTRY(__strncasecmp)

358

.type __strncasecmp, @gnu_indirect_function

359

+ /* Manually inlined call to __get_cpu_features. */

360

cmpl $0, __cpu_features+KIND_OFFSET(%rip)

361

jne 1f

362

call __init_cpu_features

363

1:

364

# ifdef HAVE_AVX_SUPPORT

365

leaq __strncasecmp_avx(%rip), %rax

366

- testl $bit_AVX, __cpu_features+CPUID_OFFSET+index_AVX(%rip)

367

+ testl $bit_AVX_Usable, __cpu_features+FEATURE_OFFSET+index_AVX_Usable(%rip)

368

jnz 2f

369

# endif

370

leaq __strncasecmp_sse42(%rip), %rax

371

diff --git a/sysdeps/x86_64/multiarch/test-multiarch.c b/sysdeps/x86_64/multiarch/test-multiarch.c

372

new file mode 100644

373

index 0000000..76b1af2

374

--- /dev/null

375

+++ b/sysdeps/x86_64/multiarch/test-multiarch.c

376

@@ -0,0 +1,90 @@

377

+/* Test CPU feature data.

378

+ This file is part of the GNU C Library.

379

380

+

381

+ The GNU C Library is free software; you can redistribute it and/or

382

+ modify it under the terms of the GNU Lesser General Public

383

+ License as published by the Free Software Foundation; either

384

+ version 2.1 of the License, or (at your option) any later version.

385

+

386

+ The GNU C Library is distributed in the hope that it will be useful,

387

+ but WITHOUT ANY WARRANTY; without even the implied warranty of

388

+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

389

+ Lesser General Public License for more details.

390

+

391

+ You should have received a copy of the GNU Lesser General Public

392

+ License along with the GNU C Library; if not, see

393

+ <http://www.gnu.org/licenses/>. */

394

+

395

+#include <init-arch.h>

396

+#include <stdio.h>

397

+#include <stdlib.h>

398

+#include <string.h>

399

+

400

+static char *cpu_flags;

401

+

402

+/* Search for flags in /proc/cpuinfo and store line

403

+ in cpu_flags. */

404

+void

405

+get_cpuinfo (void)

406

+{

407

+ FILE *f;

408

+ char *line = NULL;

409

+ size_t len = 0;

410

+ ssize_t read;

411

+

412

+ f = fopen ("/proc/cpuinfo", "r");

413

+ if (f == NULL)

414

+ {

415

+ printf ("cannot open /proc/cpuinfo");

416

+ exit (1);

417

+ }

418

+

419

+ while ((read = getline (&line, &len, f)) != -1)

420

+ {

421

+ if (strncmp (line, "flags", 5) == 0)

422

+ {

423

+ cpu_flags = strdup (line);

424

+ break;

425

+ }

426

+ }

427

+ fclose (f);

428

+ free (line);

429

+}

430

+

431

+int

432

+check_proc (const char *proc_name, int flag, const char *name)

433

+{

434

+ int found = 0;

435

+

436

+ printf ("Checking %s:\n", name);

437

+ printf (" init-arch %d\n", flag);

438

+ if (strstr (cpu_flags, proc_name) != NULL)

439

+ found = 1;

440

+ printf (" cpuinfo (%s) %d\n", proc_name, found);

441

+

442

+ if (found != flag)

443

+ printf (" *** failure ***\n");

444

+

445

+ return (found != flag);

446

+}

447

+

448

+static int

449

+do_test (int argc, char **argv)

450

+{

451

+ int fails;

452

+

453

+ get_cpuinfo ();

454

+ fails = check_proc ("avx", HAS_AVX, "HAS_AVX");

455

+ fails += check_proc ("fma4", HAS_FMA4, "HAS_FMA4");

456

+ fails += check_proc ("sse4_2", HAS_SSE4_2, "HAS_SSE4_2");

457

+ fails += check_proc ("sse4_1", HAS_SSE4_1, "HAS_SSE4_1");

458

+ fails += check_proc ("ssse3", HAS_SSSE3, "HAS_SSSE3");

459

+ fails += check_proc ("popcnt", HAS_POPCOUNT, "HAS_POPCOUNT");

460

+

461

+ printf ("%d differences between /proc/cpuinfo and glibc code.\n", fails);

462

+

463

+ return (fails != 0);

464

+}

465

+

466

+#include "../../../test-skeleton.c"